Home / 172,299.65-237,738.67-100,665.84

Finding the Fourth Proportional to 172,299.65, 237,738.67 and 100,665.84

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Solution

The fourth proportional to 172,299.65, 237,738.67 and 100,665.84 is: 138,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,299.65 : 237,738.67 = 100,665.84 : x
  2. Step 2: Convert to fraction form
    172,299.65/237,738.67 = 100,665.84/x
  3. Step 3: Cross multiply
    172,299.65x = 237,738.67 × 100,665.84
  4. Step 4: Simplify right side
    172,299.65x = 23,932,162,664.37
  5. Step 5: Solve for x
    x = 23,932,162,664.37/172,299.65
  6. Step 6: Final answer
    x = 138,898.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.